Replenishing shuttle boxes



June 30, 1931. H. B-URDETT 1,812,079

REPLENI SHI NG SHUTTLE BOXES Filed July '7. 1930 INVENTOR.

ATTORNEY the shed 'on a en Patented June 30, 1931 1 UNITED STATES.

PATENT OFFICE HORAOE H. BURDET'I', HOPEDALE, MASSACHUSETTS, ASSIGNOB T0DRA'PE'R COB- PORATION, EOPEDALE, MASSACHUSETTS, A. CORPORATION 01anrmmsnme snu'r'rrn noxn's Application filed my '1,

' liable to be caught between the side of the shuttle and the innersurface of the front box plate upon call for re lenishment', thusleaving a length of s ent ing to be carried into sequent pick of theshuttle. It is desirable to line the front box plate with a frictionmaterial such as leather or the like,

but where this has been attempted heretofore,-

the filling between the shuttle eye and inner end of the shuttle box hasclung to the friction material and emphasized the liability of weavingdefective cloth.

An im rtant feature of the present invention consists of-a shuttle boxof the replenish ing type having a front box plate of novel constructionwhereby the objectionable con ditions existing heretofore are overcomean the weaving of perfect cloth made possible.

the front box plateis provided with a longitudinally extending slot inline with the 1ongitudinal thread groove in the side of a boxed shuttleand open at its inner end, that on call for replenishment the oldfilling end may be withdrawn freely from the shuttle throughout itsentire length.

Another novel feature of the invention consists of a front box platehaving a slot extending longitudinally thereof and dividing the boxplate into a lower anchoring member and a shorter upper member supportedsolely by the anchoring member at the outer portion thereof with theresult that the first impact of incoming shuttle is resisted by therigid anchoring member below the thread groove in the shuttle andthereafter by the shorter upper member as the shuttle enters more fullyinto the shuttle box. I

Since the inner end of the shorter upper In accordance with the presentinvention boxv ' plenishing 0 filling.

1930. Serial No. 465,914;

I member is unsupported except at the outer ortion of the anchoringmember,the checkmg action of the shorter u per member may be maderesilient to some egree and both of said members may be faced withleather or other friction material by virtue of the fact thelongitudinal slot in the front box plate coincides or is in line withthe longitudinal thread groove in the boxed shuttle thus providing aspace in the shuttle thread groove andopen slot of the box plate inwhich the thread will naturally rest with no tendency to drop betweenthe contacti side of the shuttle and inner face of the anc oring member.

The invention and other novel features thereof in addition-to the abovewillbest be made clear from the following description and accompanyingdrawings of one good practical form thereof. In the drawings Fig. 1 is aplan view of a replenishing shuttle box containing the presentinvention,

parts of the lay being broken away;

Fig. 2 is a front view thereof; Fig. 3 is a perspective view of thefront box plate detached;

Fig. 4 is an enlarged end view of the front d' box plate looking in thedirection of the arrow of Fig. 3; and V Fig. 5 is an enlargedcross-section on the line 55 of Fig. 2.

The lay 1 maybe of the usual character and be provided at its outer endwith a replenishing shuttle box 2, the latter having the usual bottomopening 3 for thepassage of the ejected fillin carrier or bobbin duringre- In accordance with the present invention the front box plate shownto be detached in Fig. 3 has a longitudinally extending slot 4 which isin line with the usual shuttle groove 5 of a boxed shuttle. The slot 4.in the box plate is closed at its outer end as at 6 and extendslongitudinally and substantially centrajlf dividing the box plateinto ofthe box plate towards the inner end 0 'the latter, thus an anchoringmember 7 and upper member 8, the inner end'9 of which terminates shortof the inner end of the shuttle box as more clearly indicated in Figs. 1and 2.

provided with slots through which the bolts 12 and 13 pass. l

The outer end portion of the slot 4 is enlarged at 14 to provide anentrance for the now well known cutter and clamp for parting the fillingadjacent the shuttle eye and clamping it for outward movement by theparter and clamp as the latter moves front wardl It will not benecessary to herein descri e the parter and clamp as the details 4 ofthese features form no part of the present invention, which is moreparticularly directed to the front box plate and its novel constructiomIn the construction of the shuttle box heretofore devised there hasalways been the danger of the-filling being clamped between the side ofthe shuttle and the inner surface.

of the front box plate and especially will this occur on the fillingoverthrow or balloon as the shuttle comes to restv lln the presentconstruction of the front box plate, how: ever, the longitudinal slotwhich divides the front box plate into the anchoring member and uppermember and wherein-the upper member is shorter than the anchoring memberthe liability of filling being caught between the shuttle and front boxplate is entirely overcome, since the space afforded by the longitudinalslot in the box plate and the longitudinal thread groove in the side ofthe shuttle provides an unobstructed openin in which the filling mayrest.

nasmuch. as the upper member 8 is supported solely by the anchoringmember at its outer portion, the inner end of the upper member is freeand provides a space between the end thereof and the end of the shuttlebox in which any overthrow or ballooning of thread may escape withoutentering between the shuttle and box plate.

As hereinbefore noted the anchoring member of the box plate is longerthan the upper member and said anchoring member extends substantiallythe full length of the shuttle box with the result that the rigidanchoring member will first take the impact of the incoming shuttlebelow the thread groove as it enters the shuttle box and thereafter theup-,-

per member will act upon the shuttle as it passes to picking position. v

It may be advisable in some cases to strengthen the connection betweenthe outer end portion of the anchoring member and the upper member andthis may be readily eilected by the metal reenforced member 15 asindicated in Fig. 3.

Heretofore it has not been feasible or practical to line the front boxplate with a friclength of the aramie tion material owing to theliability of the filling being caught by the frictional material andthus emphasize the objections heretofore existing in the filling beingtrap ed between the shuttle and inner face of the box plate, but withthe construction. of the front ox plate as hereinbefore described wherethe upper member is shorter than the anchoring member to provide an openended slot, it is possible to line both the anchoring member and theupper member of the front box plate with the frictional material, suchfor instance as leather, and in the present instance of the inventionthe leather lining 16 has two legged portions extending full slot in thefront box plate, one of said leg portions 17 being secured to the uppermember-of the box plate, and the other leg portion 18 being secured tothe inner face of the anchoring member. One; good practical means ofsecuring the leg portions of the leather or friction material to theanchoring member and upper member, the outer end ortions of each leg asat 19 may be turned outwardly towards the front of the box plate andsecured to the upper and lower members v by screws such as 20 In somecases the friction material may be adhesively secured to the anchoringmember and upper member and additional screws such as 21 may be employed.

By the provision of the front box plate with the longitudinallyextending slot as described, in line with the thread groove in the sideof the shuttle, and the termination of the upper member of the front boxplate short of the inner end of the shuttle box, the filling thread ofthe outgoing carrier or bobbin may be readily withdrawn frgntwardlythrough the slot of the box plate with minimum tension or breakage.

On replenishment of filling the spent filling end may be readilywithdrawn frontwardly through the slot of the box plate through the openinner end of the slot and to prevent the old filling end from beingcarried into the shed or caught upon portions of the front box plate,the anchoring member is provided with an abutment 22 substantially atright angles to the longitudinal axis of the shuttle box, the abutment22 thereby preventing the old filling end from entering the shuttle boxor being drawn into the shed during the lay operation.

in replenishing looms where the filling carrier or bobbin is changedfrom time to time the end of the new filling is secured at some fixedpoint such a lug or projection on the hopper or magazine, and in orderto prevent the end of the new filling from being carried into the shedthe upper member 8 of the front I direct the thread into a holding notch24 formed in the upper edge portion of the anchorin member. From theconstruction herein efore described it will bea parent-that the frontbox plate havin the ongitudinal anchoring member and t e shorter u permember separated by the slot in the box p ate, provides a'space betweenthe end 25 of the anchorin member and the end 9 of the upper member inwhich the thread may overthrow or balloon when the shuttle comes to restwithout danger of being caught or trapped between the shuttle and theinner face of the front box plate.

As hereinbefore suggested the upper member 8 of the front box late issolely supported at the outer end t ereof so that a certain amount ofresiliency will be permitted the shorter member of the box plate as theshuttle passes to picking position.

It may be desirable at times to form the inner end portion of theanchoring member with an upwardly inclined edge as at 26 which serves toprevent the outgoin filling end from being caught by the securing boltsfor the anchoring member.

What is claimed is:

1. A shuttle box for looms having a front plate provided with an openended thread slot extending longitudinally thereof in line with thethread groove in a boxed shuttle and dividing the front plate into alower anchoring member and an upper member supported at the outer end ofand shorter than the lower anchoring member to provide an upwardly openspace above the inner end occurrence of a balloon in the thread as theportion of the anchoring member that on the shuttles come to rest thethread will not be trapped between the shuttle and front plate of theshuttle box.

2. A shuttle box for looms having a front plate provided with an openended thread slot extending longitudinally thereof in line with thethread groove in a boxed shuttle and dividing the front plate into alower anchoring member and a shorter upper member solely supported bythe anchoring member at the outer end portion thereof, and means forsecuring the anchorin member of the box plate to the lay that t e firstimpact of the incoming shuttle may be resisted by the anchoring memberbelow the thread groove in the shuttle.

3. A shuttle box for looms having a front plate provided with an openended thread slot extending longitudinally thereof in line with thethread groove in a boxed shuttle and dividing the front plate into alower anchoring member and a shorter upper member so ely supported bythe anchoring member at the outer end portion thereof, a frictionallining having separated leg portions corresponding to the two membersand secured thereto, and means for securing the anchoring member of thebox plate to the lay that the first impact of the incoming shuttle maybe resisted by the anchoring member below the thread groove in theshuttle. a

4. A shuttle box for looms having a front late provided with a rigidanchoring memr and a substantially resilient upper member shorter thanthe anchoring member and supported solely by the anchoring member at theouter portion thereof that the first im- Eact of the incoming shuttlemay be resisted y the anchoring member and thereafter by the resilientupper member of the front plate as the shuttle moves to pickin position.

5. A shuttle box for looms liaving a front plate provided with a rigidanchoring mom-- er and a substantially resilient upper member shorterthan the anchoring member and supported solely by the anchoring memberat the outer portion thereof that the first impact of the incomingshuttle may be resisted by the anchoring member and thereafter by theresilient upper member of the front plate as the shuttle moves topicking position, and a lining of friction material having leg portionssecured upon the inner surfaces of the two members.

6. A front box late provided with a longitudinally exten ing slotopen'at its inner end, a rigid anchoring member below saidlongitudinally extending slot to take the first impact of the shuttle asit enters the shuttle box and an upper member shorter than the anchoringmember above said longitudinal slot and supported at the outer end ofthe anchoring member beyond the outer end of the longitudinalslot.

7. A front box plate provided with a longitudinally extending slot openat its inner end, an anchoring member below said longitudinallyextending slot, and an upper mem- 'ber shorter than the anchoring memberand supported solely bythe anchoring member at the outer end portionthereof.

8. A front box platehavingalongitudin ally extending slot in line withthe thread groove of a boxed shuttle, an anchoring member below thelongitudinally extending slot and a resilient upper member shorter thanthe agchoring member and the inner end of which terminates between theends of the anchoring member.

9. A front box plate having a central longitudinal slot in line with thethread groove in a boxed shuttle and open at its inner end, said slotdividing the front box plate into a lower anchoring member and an uppermember of less length than the anchoring member and having its free endterminating short of the inner end of the shuttle box.

10. A front box plate having a central longitudinal slot in line withthe thread groove in a boxed shuttle and dividing the front plate intoan anchoring member and a shorter upper member supporteci solely by theouter Fortion of the utter may reslst anchoring member that the thefirst impact of the shuttle as it enters the shuttle box and u permember ma thereafter engage the s uttle and 5 flex un er theshuttleimpact.

In testimony name to this 51% whereof, I have signed my cification.ORAOE H. BURDETT.

